von Neumann regular rings;
Baer rings;
quasi-regular rings;
locally integral domains;
von Neumann regular modules;
Baer modules;
quasi-regular modules;
torsionfree modules;
locally torsion-free modules;
normal modules;
D O I:
10.1142/S0219498823501037
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
Recall that a commutative ring R is a locally integral domain if its localization Rp is an integral domain for each prime ideal P of R. Our aim in this paper is to extend the notion of locally integral domains to modules. Let R be a commutative ring with a unity and M a nonzero unital R-module. M is called a locally torsion-free module if the localization M p of M is a torsion-free Rp-module for each prime ideal P of R. In addition to giving many properties of locally torsion-free modules, we use them to characterize Baer modules, torsion free modules, and von Neumann regular rings.